AZ5954 Datasheet PDF - Shanghai SIM-BCD Semiconductor

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AZ5954
Shanghai SIM-BCD Semiconductor

Part Number AZ5954
Description 4-Channel BTL Motor Driver
Page 13 Pages


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U.com Data Sheet
et44-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD
heGeneral Description
Features
AZ5954
taSThe AZ5954 is a four-channel BTL driver IC for driv- · Wide Dynamic Range (3.9V(Typ.) When VCC =
aing the motors and actuators in products such as CD-
12V, PVCC=5V and RL=8)
.DROM and DVD. Two of the channels use current feed- · Level Shift Circuit On Chip
wback to minimize the current phase shift caused by the
w influence of load inductance. The IC is used in CD-
w ROM drivers and DVD drivers, etc.
·
·
Thermal Shutdown Circuit On Chip
Internal Standby Mode
omThe AZ5954 is available in HSOP-28 package.
Applications
· CD-ROM Driver
· DVD Driver
www.DataSheet4U.cHSOP-28
Apr. 2005 Rev. 1. 1
U.comFigure 1. Package Type of AZ5954
Sheet4BCD Semiconductor Manufacturing Limited
www.Data1



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4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD
Pin Configuration
M Package
(HSOP-28)
Data Sheet
AZ5954
VINFC
CFCerr1
CFCerr2
VINSL+
VINSL-
VOSL
VNFFC
FIN
(GND)
VCC
PVCC1
PGND
VOSL-
VOSL+
VOFC-
VOFC+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 STBY
27 BIAS
26 VINTK
25 CTKerr1
24 CTKerr2
23 VINLD
22 GND
FIN
(GND)
21 PVCC2
20 VNFTK
19 PGND
18 VOLD-
17 VOLD+
16 VOTK-
15 VOTK+
Figure 2. Pin Configuration of AZ5954 (Top View)
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
2



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4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD
Pin Description (Note 1)
Data Sheet
AZ5954
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin Name
VINFC
CFCerr1
CFCerr2
VINSL+
VINSL-
VOSL
VNFFC
VCC
PVCC1
PGND
VOSL-
VOSL+
VOFC-
VOFC+
VOTK+
VOTK-
VOLD+
VOLD-
PGND
VNFTK
PVCC2
GND
VINLD
CTKerr2
CTKerr1
VINTK
BIAS
STBY
Function
Focus driver input
For connection of capacitor for the error amp filter
For connection of capacitor for the error amp filter
Op Amp input (+) for the sled driver
Op Amp input (-) for the sled driver
Op Amp output for the sled driver
Focus driver feedback pin
Supply voltage
Power supply voltage for sled driver block
Ground for sled driver block
Sled driver output (-)
Sled driver output (+)
Focus driver output (-)
Focus driver output (+)
Tracking driver output (+)
Tracking driver output (-)
Loading driver output (+)
Loading driver output (-)
Ground for actuator driver block
Tracking driver feedback pin
Power supply voltage for actuator driver block
Ground
Loading driver input
For connection of capacitor for the error amp filter
For connection of capacitor for the error amp filter
Tracking driver input
Bias input
Standby control
Note 1: The indicated polarities for the output pin are for when all inputs are (+).
The outptut H bridge power supply pins are PVCC2 for the focus, tracking channel, PVCC1 for the loading
channel, and VCC for the pre-block and sled channel.
Always ensure that VCC PVCC.
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
3



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4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD
Functional Block Diagram
Data Sheet
AZ5954
VINFC
CFCerr1
CFCerr2
VINSL+
VINSL-
VOSL
VNFFC
1
10K 20K
2
7.5K
3
4
5
6
7
7.5k
2
THERMAL
SHUT DOWN
STAND-
BY
28
27
26
20k 10k
25
7.5k
24
7.5k
23
22
2
STBY
BIAS
VINTK
CTKerr1
CTKerr2
VINLD
GND
VCC
PVCC1
PGND
VOSL-
VOSL+
VOFC-
VOFC+
8 VCC
9 PVCC1
10
11
12
13
14
Apr. 2005 Rev. 1. 1
10K
10K
25K
15k
SLED
DRIVER
LOADING
DRIVER
ACUATOR
DRIVER
ACTUATOR
DRIVER
VCC
PVCC2 PVCC1
21
20PVCC2
19
18
17
16
15
PVCC2
VNFTK
PGND
VOLD-
VOLD+
VOTK-
VOTK+
Figure 3. Functional Block Diagram of AZ5954
BCD Semiconductor Manufacturing Limited
4



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